/*********************************************************************
Seserot - My toy compiler
Copyright (C) 2022  zly2006

This program is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU General Public License for more details.

You should have received a copy of the GNU General Public License
along with this program.  If not, see <https://www.gnu.org/licenses/>.
*********************************************************************/

#include "ByteCodeWriter.h"

int Seserot::ByteCodeWriter::checksum(const char *binary, size_t len) {
    int sum = 0;
    for (size_t i = 0; i < len; i++) {
        sum += binary[i] * (int) ((i * 35) % 28);
    }
    return sum;
}

std::ostream &Seserot::ByteCodeWriter::writeInt(std::ostream &ostream, int value) {
    ostream.write((char *) &value, 4);
    return ostream;
}

int Seserot::ByteCodeWriter::readInt(std::istream &istream) {
    int x;
    istream.read((char *) &x, 4);
    return x;
}
